Machinery for shaping counter-sti ffeners



G L ROTH Machinery for Shaping Counter-Stiffeners.

Patented Mar. 23,1880.

N. PETERS, PHOTO LTHOGRA WASHIN iJNiTED STATES GEORGE L. ROTH, OF PITTSBURG, PENNSYLVANIA.

MACHINERY FOR SHAPING COUNTER-STIFFENERS.

SPECIFICATION forming part of Letters Patent No. 225,875, dated March 23, 1880.

Application filed December 31, 1879.

To all whom it may concern:

Be it known that I, GEORGE L. BOTH, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Machinery for Shaping Counter Heel-Stifleners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification, in which-- Figure 1 shows the base and bearings without the rollers. Fig. 2 is an elevation of the shaping-rollers. Fig. 3 is an end elevation of the machine, showing a blank under manipulation. Fig. 4 is a front elevation of the same. Fig. 5 shows the product in section.

This invention relates to machines for formin g counter heel-stiffeners for boots and shoes;

. and it consists in the novel construction and combination of parts, as hereinafter described and claimed.

In the drawings, A is the base of the machine, having the uprights or standards B and C. 0n standard B, at upper end, is constructed a fixed journal-box, b. Through this passesa shaft, D, shouldered at one side of the journalbox and plain on the other.

On the plain part of shaft D is a conical or conoidal roller, E, having the base toward the journal-box b. This roller is arranged on the shaft by spline and groove or similar device, which causes it to turn with the shaft while allowing the roller to have endwise movement on the shaft.

At its outer extremity the shaft D is reduced in diameter and a loose washer, c, placed thereon. Then a spring, 01, is fitted on and followed by another washer, e, and all kept in adjustable position by the nut or set-screw f, as shown.

On the two standards 0 G is pivotally hung a lever, F, having at a point under the shaft D a journal-box, G. Beyond this, lever F passes through a slot in standard B, and out- At its outer extremity lever F is fitted with a handle, or a strap or chain, which extends Elown to a treadle, so as to be operated bythe 'oot.

Lever F is pivoted to the two standards 0 O by a rod, 71, whose bearing in standard 0 is fixed; but that in standard 0 is a slot to allow vertical play of that side of the lever which rests upon a spring-cushion, k, as shown.

Passing through the box G is a shaft, L, and to this is pennanently keyed or otherwise fixed a second shaping-roll, M, of peculiar form. The roller-body is of conical or conoidal form, similar to roller E, but in reverse position, so that the parting-lines of the two are substantially parallel; but roller Mis much larger in diameter than roller E, and at its narrow end has a collar, 1, which overlaps the base or broad end of roller E. Shaft L is so arranged as to have no end motion whatever, and consequently roller M remains fixed longitudinally. The adjacent faces of roller E and collar l are radially fluted, the flutes on the collar being larger than those on the base of the roller E. The face of the latter may also be longitudinally fluted, though I do not consider this essential.

On the end of shaft D opposite the roller E is a large gear-wheel, S, which meshes with a small pinion, T, on the shaft L, to which the power is preferably applied. By this gearing the shaft L, and consequently roller M, makes more revolutions than-shaft D and roller E; hence the surface-speed of roller M is greater than that of roller E. Hence a blank passing between the two will be stretched by the roller M and compressed by the roller E-that is, it will be lengthened on one surface and shortened on the other--thus giving it the desired curvature independently of any other source. This curving is assisted by the roller E being small as compared with roller M.

In practice, the blank is fed between the rollers in such position that its greater width passes between the faces of the rollers, and the remaining width is taken between the fluted base of the roller E and the fluted face of the collar L on roller M. This turns the flange on the blank, and the combined result is a heel-stiffener, as shownin Fig. 5, having the main portion formed by the opposing forces of stretching and compression, and the flange formed by radial crimping or fluting, which must be distinguished from lapping or plai ting.

The spring on the shaft D permits an adjustable pressure of roller E against collar 1, 5 so as to admit different thicknesses of leather at the flanging devices. The rollers E M are allowed an adjustable pressure on their faces by means of the lever F. When the leather is found too thick for the adjustment already fixed upon, a slight movement of the lever F downwardly effects their separation; but by reason of the arrangement of lever F on the standards (I O the movement is angular, such 7 W as to separate them chiefly at the point where the flange is to be formed, thus allowing the faces to still operate upon the scarfed portion of the blank.

In fluting the flange of the roller M, as well as the end of the roller E, I secure aresult not obtainable when but one of the rolls is fluted. As will be observed, I have constructed the flange lwith fiat or plane surfaces between the grooves, so that the crimps or ridges formed by the action of the small roll will be somewhat flattened or smoothed without destroying the crimp or contraction of the leather.

.stiffeners, the combination, with the shaft of one of the rollers, of a journal-box, G, on a pivoted lever, F, pivoted at two points parallel with the said shaft, and having one point cushioned on a spring-cushion, is, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 24th day of December, 1879.

GEORGE L. ROTH.

WVitnesses:

T. J. MclIcI-IE, T. J. PATTERSON. 

